Detectives said 26-year-old Octavio Rangel of Yakima was shot in the head. He died at the scene.

Police said two people fled on foot after the shooting. One is still at large. They said there is no clear motive, but it is believed to be gang-related.

The 15-year-old suspect was booked into the juvenile detention center for murder in the first degree.

Neighbors and witnesses gathered around the bloody scene; many in disbelief someone was murdered just outside their door step.

"All of a sudden I heard a pop, pop, pop and then I came over here to see if whoever is ok and I saw the guy on the ground," Donovan Kipling said.

Police told KIMA the altercation started at the nearby bus stop. It quickly escalated into a shooting.

Some neighbors tried to help, but it was too late.

"The nurse came over to help him and instantly he was gone," Kipling said.

Officers barricaded the scene for blocks and combed the area. K9 units led them to an apartment building near N. 6th street. Officers held that apartment on lock down for hours.

"A lot of activity immediately took place right after the shooting, but right now we're following up on some information we have to hopefully quickly identify the suspect," said Yakima Police Captain Rod Light.

Neighbors are coming to terms with the sudden and tragic loss of life in their own backyard.

"That could be somebody's son, or it's their dad, or whoever you know or somebody's uncle. It's unbelievable," Kipling said.